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Smooth Darling Pea
Characteristics: Shrub 2 m spread 2 m
Seed per packet: 25
Small evergreen shrub with a spreading habit with light to dark green leaves comprising of 12 or so narrow elliptical leaflets.
Dense Pea flower heads on 15 cm spikes occur during spring and summer.
Endemic to NSW and Queensland.
Prefers a light to medium well-drained soil in an open sunny position, drought and frost resistant.
Main photo credit David Lochlin CC BY 2.0
Although seed can be sown most of the year in Australia seed is generally best sown in spring or autumn in temperate climates, avoid the coldest and hottest months of the year. The optimum germination temperature for germination is around 18-24°C
Swaisona seeds germinate readily, however they do have a hard outer coating which is impervious to water. To assist in the uptake of moisture for germination to occur seed best scarified by pre-treating with hot water.
Hot water treatment is recommended for this species.
General note: Seeds of many natives are dormant and require specific conditions or pre-treatment for germination.
Do not be too hasty to discard seed that does not germinate, seeds will often lay dormant until the conditions are similar to their natural requirements for germination to occur. Containers put to one side will often surprise long after they were discarded.